x+(x+1)+(x+20)+3=45

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Solution for x+(x+1)+(x+20)+3=45 equation: 



x+(x+1)+(x+20)+3=45

We move all terms to the left:

x+(x+1)+(x+20)+3-(45)=0

We add all the numbers together, and all the variables

x+(x+1)+(x+20)-42=0

We get rid of parentheses

x+x+x+1+20-42=0

We add all the numbers together, and all the variables

3x-21=0

We move all terms containing x to the left, all other terms to the right

3x=21

x=21/3

x=7

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